Answer:
y=8
Step-by-step explanation:
7y-20=3y+12
7y-3y=12+20
4y/4=32/4
y=8
F = 3m
f = 3 + 4m
Since both equations are equal to f, set them equal to each other.
3m = 3 + 4m
Subtract 4m from both sides.
-m = 3
Divide both sides by -1.
m = -3
CHECK
f = 3(-3) = -9
f = 3 + 4(-3) = -9
Answer: Check explanation.
Step-by-step explanation: If she has 140 pages left to read, and completed 2/5 of the book last week, and 1/4 of the book this week, then we have to divide the pages left to read (140) by the fraction of pages she read last week (2/5), and this week (1/4).
When you divide 140 by 2/5 by 1/4, you get 1400. Hope this helped!